Trigger mechanism for automatic or self-loading small-arms.



P. MAUSER. TRIGGER MECHANISM FOR AUTOMATIC OE SELF LOADING SMALL ARMS.

APPLIUATION FILED 001 31. 1911.

, 1,081,761; Pat enfed Dec. 16,1913.

2 SHBETS -SKEBT 1.

MAJ/2 P. MAUSER. TRIGGER MECHANISM FOR AUTOMATIC 0R SELF LOADING SMALL ARMS.

APPLIOATION FILED OCT. 31, 1911.

Patented Dec. 16, 1913.

2 SHEETSSHEET 2.

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Specification oi Letters Tatent.

Patented Deed-6, 19 3 Application filed October '31, 1911. Serial Nov 657,851.

T at? it may concern j Be 11-55mm that I, FAUL- Masses, privy eemmercizfl'councillor, a subject of the King of l turttelnberg, residing at Obern'dorf-ontheNeckanGermany, have invented certainew and -useful-.Improvements-'in Trigger Mechanism for Automatic or Self-Loading SmalLArms, of which vthefollowing is a Y full; clean'and exact description.

The invention relates to trigger mechanisin for automatic'or self loading small arms and essentially consists in the provision of a member .which,atu'ated by the breech piece, disestablishes. the engagement of'the i trigger mechanism when the breech is open; a The 'accompanying'drawing shows the invention-by wayiof example as applied-to a Mauser recoil loading pistol with fixed bar reland breech carriage guided on the frame.

In this drawing; Figure 1 shows the loaded and I closed weapon in side elevation, partly in longitudinal section. Fig. 2 shows the trigger. mechanism at the moment of firing, the breech carriage still occupying theclosed-pcsition. Fig. 3 shows the fired weapon with the breech 'carriage'in the open -'positioni Figs. at to '7' show' the trigger mechanism to a larger scale. Fig. 4 is an elevation with the breech closed corresponding to Fig. '1. Fig. 5 is a section on the line 5-.5 in Fig. 4. Fig. 6i's a view corresponding'to Fig.3 with the breech open and Fig. 7' is asection on the line 77 inFig. 6. 1

. In-the recoil-loading pistol. illustrated the' breech carriage c is slidabl'y mounted in the known v.manner' by means of lateral projec tions along the upper part of the frame 9 "which is provided with suitable guides. The

handle proper is formed as a magazine casfling. On the upper end of this magazine casing the sear lever which is formed as a two-armed lever a a is. pivoted laterally "at a. The arm a of the sear leverwhich isbent inwardly around the magazine casing carries the, seardog a projecting into the path of the percussion bolt; when the pistol is cocked this .dog engages and prevents further movement of the percussion bolt as disti'nctly shown in Fig. 1. The armc of the v sear lever is also b'ent inward around the magazinepasing. and engag'es'at the nose c the dog 0 which is pivoted atfc 'Qtdthe ting} g'er 2' and acted uponby the spring 1.,

to m'yxinvention a'idoglefi; L t 'e pivot is; ispl QYldd -labflvfiflfe the upper taperedport-ion is bit 'Accordin 1 sear lever,

this-lever being adapted "toenter a corre- 1 f sponding recess-o in the breech carriage when the breech is closed and its lower nose k bears on a projection 0 formed laterally 'onthe dog 0.

1 When the pistol isloaded and properly closed (Fig. 1) and the:- trigger is actuated the percussion bolt is released in the known manner so that the dog'k enters therecess 5 if in the breech carriage and therefore does. not affect the engagement between the dog amid the sear lever a (B. As soonas the. breech carriageslides rearward after firin the dog in is rotated downward out of the 7.0 recess 1.5 by the inclined face of therecess v of the breech carriage which presses-0n" its upper edge. Its nose k then presses on the projection 0 on the dog c, whereby the. latter is removed from the path ofthe sear lever a? 02 The scar lever-is thus released frern its engagement with the dog and under the influence of its springf rocks back into its engaging position. The percussion bolt is consequently engaged in the mGVE'IIIGHtOf 30 the searlever dog irrespective of whether the-safety device still retains. the trigger dog or not. It is only after the breech carriage, has returned to the locking position that the dog is is able to reenter the recess'v and release the dog c for engagement with the sear lever. I

The improved mechanism therefore fulfils the doublefunction' of-automaticallydiscs-- tablishing engagement between the dog and a 9.0 the sear lever after firing and of preventing the-release of the pereussionbolt when thebree'ch is not closed.

What 'I claim as my invention and desire to secure by Letters Patent of the United- States is: 4 1. The combination with a self-loading small-arm, of a breech carriage and frame, trigger mechanism, a searv lever adapted to engage said trigger mechanism, and a mem- '100 berpivoted to the frame and actuated by the movement "of said breech carriage" for dises tablishing theengagement between saidgtrigger mechanism, a firing. pin, a member.

'ivoted; tothe frameand actuated by.- said' I" reach. carriage and oscillated thereby- 015' ---maeng the trigger mechanism n P re-' the use; s' p ni "(111d l lever adapted Etc be disengaged from (said small-arm,

trigger mechanism immediately after firing and to interrupt the reciprocatory move-v ment of and lock the 'firing pin during the return movement of said breech carriage.

3. The combination with a self-loading of a breech carriage, a trigger, a dog pivoted'to said trigger, a sear lever adapted to engage said dog, and-means actuated by said breech carriage and oscillated thereby for disengaging said trigger dog from saids'ear lever.

4:. The combination with a self-loading small-arm, of trigger mechanism and a frame, a breech carriage formed with a tapering recess, a sear lever, means for effecting the engagement of said trigger mechanism with said sear lever, and a member pivoted to the frame and actuated by said carriage and adapted to enter said recess for permitting the engagement of said trigger mechanism with said sear lever and from upon the opening of the breech" for to be disengaged from said recess for eflectmg the disengagement of said trigger mechanism from said sear lever.

5. The combination with a self-loading small-arm, of trigger mechanism and a frame, a breech carriage ccss, a sear lever, means for efiecting the engagement of said trigger mechanism with said sear lever, and an oscillating member pivoted to the frame and actuated by said l l l l l l g l l l l l l l i mechanism from said 6. The combination with a self-loading I small-arm, of trigger mechanism, a sear lever, a spring adapted to effect the engagement of said trigger mechanism with said sear lever, 'a breech carriage formed with a recess having a surface gradually inclined to the line of movement of said breechcarriage, and an oscillating member actuated. by said carriage and having a surface corresponding to the inclined surface of said recess and adapted to engage therewith when the breech is closed for permitting the engagement of the trigger mechanism with the sear lever and to be disengaged there- "e'liecting the disengagement of said trigger sear lever. In testimony whereof I have afiixed my 5 signature in presence of two witnesses.

formed with a re- 5 PAUL MAUSER.

Vitnesses 2 FRIDE KLAIBER, PAULINE KLAIBER. 

